ah, I guess I did not realize the difference if iegp load sharing. Thanks all for pointing that out, good thing for a Monday.
-----Original Message----- From: Oliver Boehmer (oboehmer) [mailto:[email protected]] Sent: Monday, March 31, 2014 9:39 PM To: John van Oppen; [email protected] Subject: Re: [c-nsp] interesting ASR 9k bgp multipath issue >Yes, I did, but my point is that behavior is not the same or at least >appears not to be the same on IOS, I want ibgp multipath but only for >things with matching IGP metrics, is there a way to tweak that. IOS also behaves the same if configured the same (with maximum-paths eigbp).. as Jared pointed out, you want to enable "maximum-paths ibgp <n>" (and possibly "maximum-paths ebgp <n>" if you also want to load-share eBGP peers). the configuration of maximum-paths eibgp <n> is not a shortcut for and hence is different to maximum-paths ibgp <n> maximum-paths ebgp <n> oli > >-----Original Message----- >From: Oliver Boehmer (oboehmer) [mailto:[email protected]] >Sent: Monday, March 31, 2014 11:26 AM >To: John van Oppen; [email protected] >Subject: Re: [c-nsp] interesting ASR 9k bgp multipath issue > > > >>so, I have some internally anycasted prefixes (DNS resolvers) as well as >>bgp maximum paths set to allow both ibgp and ebgp multipath. Oddly, as >>you can see below the multipath appears to think two paths are >>identical even when they have different IGP metrics (path #1 and path >>#2), any idea >>if this is a bug or how to fix it? Obviously if the IGP cost is the >>same it should load share, but if not it really should not be doing >>what is shown below since the paths are not equal. > >John, what exactly did you configure in your BGP address-family? It >looks like you enabled "maximum-paths eibgp <n>", which also considers >paths with different metrics as multipath candidates. > > oli > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
